Who needs a photographer when you've got a smartphone? Click through to see the sexiest bikini selfies from Twitter and Instagram courtesy of stars like Kim Kardashian, Rihanna, Mariah Carey, and more
Hugh Hefner's third wife, Playboy model Crystal Harris, went without makeup for this early-morning selfie, which showed her posing in front of a mirror in nothing but a turquoise and silver bikini on Feb. 6, 2014. "Good morning," she wrote alongside the pic. "#nomakeup #nofilter #imtired"